One thing to remember. They may be drilling holes in Arizona but the company is headquartered in Florida and subject to Florida law. If I were concerned that's one avenue worth pursuing, I don't know if any of the investors are from Florida and are senior citizens. If so there are special laws here to protect you. If you are concerned that may be the way to go. I'm not quite a senior citizen yet.
I don't have a great deal of cash tied up here, and frankly I have just written it off.